# #a3efb9

A color — vivid, light, clean. Deterministic analysis from BrandSweets (no inference).

## Values

- Hex: `#a3efb9`
- RGB: rgb(163, 239, 185)
- HSL: hsl(137, 70%, 79%)
- OKLCH: oklch(0.888 0.106 153)
- Relative luminance: 0.7302
- Nearest named color: Ultra Mint (#a3efb8, Δ 0.131) — https://brandsweets.com/colors/ultra-mint
- Moods: vivid, light, clean
- Page: https://brandsweets.com/colors/a3efb9

## Tints & shades

- Tints (toward white): #adf0c0, #b5f2c7, #bef4cd, #c7f5d4, #cff7da, #d4f7de, #dcf9e4, #e5faeb, #eefcf2, #f6fdf8
- Shades (toward black): #86eaa2, #63e387, #45de70, #25d457, #20b64b, #1a933c, #157530, #0f5222, #093415, #031107

## Harmonies

- Complementary: #efa4da
- Analogous: #b4efa4, #a4efdf
- Triadic: #b9a4ef, #efb9a4
- Split-complementary: #dfa4ef, #efa4b4
- Tetradic: #a4b4ef, #efa4da, #efdfa4

## Colors that go with #a3efb9

Named partners (harmony on the OKLCH wheel, co-occurrence in curated palettes and brand systems, and the neutrals that carry it), best first:

- **Charcoal** #36454f [role, pool] — Charcoal is the text near-black for #a3efb9: softer than #000 and cool enough to feel like part of the same palette. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Sweetgreen (https://brandsweets.com/colors/brands/sweetgreen-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Zendesk (https://brandsweets.com/colors/brands/zendesk-com). — https://brandsweets.com/colors/charcoal
- **Plum** #dda0dd [harmony, pool: complementary] — Plum sits directly opposite #a3efb9 on the wheel — the strongest contrast one hue can give another, so use it small: a button, a link colour, one highlight. Seen in: Blossom (https://brandsweets.com/palettes/light#blossom). — https://brandsweets.com/colors/plum
- **Crimson** #dc143c [pool] — Crimson is paired with #a3efb9 in 4 real palettes, including Formula 1's brand system and Wise's brand system, as the supporting colour. Seen in: Formula 1 (https://brandsweets.com/colors/brands/formula1-com), Wise (https://brandsweets.com/colors/brands/wise-com), Frost & Ember (https://brandsweets.com/palettes/bold#frost-and-ember), Tiffany & Co. (https://brandsweets.com/colors/brands/tiffany-com). — https://brandsweets.com/colors/crimson
- **Dark Olive Green** #556b2f [pool] — Dark Olive Green shows up next to #a3efb9 in 4 real palettes, including Forest Floor and Oatmeal, as the supporting colour. Seen in: Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Undergrowth (https://brandsweets.com/palettes/dark#undergrowth), BrandSweets (https://brandsweets.com/colors/brands/brandsweets). — https://brandsweets.com/colors/darkolivegreen
- **Deep Sky Blue** #00bfff [pool] — Designers have shipped Deep Sky Blue with #a3efb9: 5 real palettes, including Astro's brand system and Prime Video's brand system, as the supporting colour. Seen in: Astro (https://brandsweets.com/colors/brands/astro-build), Prime Video (https://brandsweets.com/colors/brands/primevideo-com), Deep Water (https://brandsweets.com/palettes/dark#deep-water), Remix (https://brandsweets.com/colors/brands/remix-run). — https://brandsweets.com/colors/deepskyblue
- **Hunter Green** #355e3b [pool] — Hunter Green is paired with #a3efb9 in 4 real palettes, including Canopy and Pine & Birch, as the lead colour. Seen in: Canopy (https://brandsweets.com/palettes/cool#canopy), Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Darkroom (https://brandsweets.com/palettes/muted#darkroom), Fireside (https://brandsweets.com/palettes/dark#fireside). — https://brandsweets.com/colors/hunter-green
- **Peru** #cd853f [pool] — 5 real palettes, including Woodsmoke and Coffee Bar put Peru beside #a3efb9, as the lead colour. Seen in: Woodsmoke (https://brandsweets.com/palettes/dark#woodsmoke), Coffee Bar (https://brandsweets.com/palettes/dark#coffee-bar), Kiln (https://brandsweets.com/palettes/dark#kiln), Estate (https://brandsweets.com/palettes/luxury#estate). — https://brandsweets.com/colors/peru
- **Sage Green** #9caf88 [pool] — Designers have shipped Sage Green with #a3efb9: 6 real palettes, including Pine & Birch and Forest Floor, as the supporting colour. Seen in: Pine & Birch (https://brandsweets.com/palettes/clean#pine-and-birch), Forest Floor (https://brandsweets.com/palettes/dark#forest-floor), Oatmeal (https://brandsweets.com/palettes/neutral#oatmeal), Stone (https://brandsweets.com/palettes/neutral#stone). — https://brandsweets.com/colors/sage-green

## Contrast (WCAG 2.x, as text)

- On white (#ffffff): 1.35:1 — AA fail, AA-large fail, AAA fail. Fix: AA: text → #188637 (4.66:1); AA: background → #616161 (4.6:1); AAA: text → #126429 (7.29:1); AAA: background → #454545 (7.12:1)
- On black (#000000): 15.6:1 — AA pass, AA-large pass, AAA pass

## Fonts for this mood

- clean: https://brandsweets.com/fonts/mood/clean

## Palette tool

Open this color locked as the lead with four explored companions: https://brandsweets.com/palettes/new/a3efb9-a2bead-bb59d4-1f2d29-ebf1e9?lock=0&style=vibrant
(Humans lock/regenerate in the tool; the URL is the state — read `lock=` back to see what they kept.)

## Connect an agent

Point any MCP client at the BrandSweets colors endpoint for the same engine:

- Endpoint: https://mcp.brandsweets.com/colors/mcp
- Tools: `analyze_color` (e.g. `analyze_color({ color: "#a3efb9" })`), `check_contrast` (with fixes), `generate_palette` (explore around locks), `suggest_palette` (mood/industry → curated-first), `list_palettes`.